Study on Prospecting Direction and Anomalous Characteristics Based on Stream Sediment Survey on Ershiyizhan Area,Heilongjiang Province

With geological conditions more favorable and good prospecting potential,the Ershiyizhan area is located on the southern margin of upper Heilongjiang Basin.The preliminary study of the geochemical features in Fukeshan area was based on the 1∶50 000 stream sediment survey.Studied of the elements distribution features, the correlation analysis and factor analysis,the author thinks that the area has the potential of searching for Au,Cu ore deposit and mineralized bodies.Combined with the ore-forming geological conditions and existing mine information,one of the metallogenic types is probably gold mineralization related to quartz veins in volcanic rock,and the other is gold deposit produced in contact zone between intrusion and sandstone of Ershierzhan group;another is probably copper deposit related to rocks(granodiorite porphyry),in which the anomalies have great scale,high peak value,obvious concentration centre and good registration,gold or copper ore bodies may be found in Ershiyizhan Au-Cu metallogenic prospect area.